<template>
  <div class="container">
    <div class="ballbox">
      <div class="ball bubble" />
    </div>
  </div>
</template>

<script setup></script>

<style scoped>
@keyframes slidein {
  0% {
    mask-image: linear-gradient(90deg, white, 30%, transparent);
  }

  50% {
    mask-image: linear-gradient(90deg, white, 60%, transparent);
  }

  100% {
    mask-image: linear-gradient(90deg, white, 100%, transparent);
  }
}

.ball {
  display: inline-block;
  width: 100%;
  height: 100%;
  border-radius: 100%;
  position: relative;
  background: radial-gradient(circle at bottom, #81e8f6, #76deef 10%, #055194 80%, #062745 100%);
}

.ball:before {
  content: '';
  position: absolute;
  top: 1%;
  left: 5%;
  width: 90%;
  height: 90%;
  border-radius: 100%;
  background: radial-gradient(circle at top, white, rgba(255, 255, 255, 0) 58%);
  -webkit-filter: blur(5px);
  filter: blur(5px);
  z-index: 2;
}

.ball:after {
  content: '';
  position: absolute;
  display: none;
  top: 5%;
  left: 10%;
  width: 80%;
  height: 80%;
  border-radius: 100%;
  -webkit-filter: blur(1px);
  filter: blur(1px);
  z-index: 2;
  -webkit-transform: rotateZ(-30deg);
  transform: rotateZ(-30deg);
}

.ball .shadow {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle,
    rgba(0, 0, 0, 0.4),
    rgba(0, 0, 0, 0.1) 40%,
    rgba(0, 0, 0, 0) 50%
  );
  -webkit-transform: rotateX(90deg) translateZ(-160px);
  transform: rotateX(90deg) translateZ(-160px);
  z-index: 1;
}

.ball.plain {
  background: black;
}

.ball.plain:before,
.ball.plain:after {
  display: none;
}

.ball.bubble {
  background: radial-gradient(
    circle at 50% 55%,
    rgba(240, 245, 255, 0.9),
    rgba(240, 245, 255, 0.9) 40%,
    rgba(225, 238, 255, 0.8) 60%,
    rgba(43, 130, 255, 0.4)
  );
  -webkit-animation: bubble-anim 2s ease-out infinite;
  animation: bubble-anim 2s ease-out infinite;
}

.ball.bubble:before {
  -webkit-filter: blur(0);
  filter: blur(0);
  height: 80%;
  width: 40%;
  background: radial-gradient(
    circle at 130% 130%,
    rgba(255, 255, 255, 0) 0,
    rgba(255, 255, 255, 0) 46%,
    rgba(255, 255, 255, 0.8) 50%,
    rgba(255, 255, 255, 0.8) 58%,
    rgba(255, 255, 255, 0) 60%,
    rgba(255, 255, 255, 0) 100%
  );
  -webkit-transform: translateX(131%) translateY(58%) rotateZ(168deg) rotateX(10deg);
  transform: translateX(131%) translateY(58%) rotateZ(168deg) rotateX(10deg);
}

.ball.bubble:after {
  display: block;
  background: radial-gradient(
    circle at 50% 80%,
    rgba(255, 255, 255, 0),
    rgba(255, 255, 255, 0) 74%,
    white 80%,
    white 84%,
    rgba(255, 255, 255, 0) 100%
  );
}

.ballbox {
  width: 200px;
  height: 200px;
  display: inline-block;
  margin: 20px;
}
</style>
